From d043fb64a3cbc2928bf3c351fae5bd18913c60e4 Mon Sep 17 00:00:00 2001 From: zhangnaifu15 <1361423499@qq.com> Date: Tue, 8 May 2018 21:15:27 +0800 Subject: [PATCH] src\MyApplication\app\src\main\java\com\example\administrator\myapplication\db\DatabaseHelper.java --- .../myapplication/db/DatabaseHelper.java | 37 ---- .../myapplication/db/NoteDatabase.java | 180 ------------------ 2 files changed, 217 deletions(-) delete mode 100644 src/MyApplication/app/src/main/java/com/example/administrator/myapplication/db/DatabaseHelper.java delete mode 100644 src/MyApplication/app/src/main/java/com/example/administrator/myapplication/db/NoteDatabase.java diff --git a/src/MyApplication/app/src/main/java/com/example/administrator/myapplication/db/DatabaseHelper.java b/src/MyApplication/app/src/main/java/com/example/administrator/myapplication/db/DatabaseHelper.java deleted file mode 100644 index 00d5227..0000000 --- a/src/MyApplication/app/src/main/java/com/example/administrator/myapplication/db/DatabaseHelper.java +++ /dev/null @@ -1,37 +0,0 @@ -package com.example.administrator.myapplication.db; - -import android.content.Context; -import android.database.sqlite.SQLiteDatabase; -import android.database.sqlite.SQLiteOpenHelper; - -public class DatabaseHelper extends SQLiteOpenHelper { - - public static final String COOLNOTE_DATABASE_NAME = "coolnote"; - - public static final String NOTE_TABLE_NAME = "htq_Notebook"; - - public static final String CREATE_NOTE_TABLE = "create table " - + NOTE_TABLE_NAME - + " (_id integer primary key autoincrement, objectid text, iid integer," - + " time varchar(10), date varchar(10), content text, color integer)"; - - public static final String NEWS_LIST = "osc_news_list"; - - public static final String CREATE_NEWS_LIST_TABLE = "create table " - + NOTE_TABLE_NAME + "(" + "_id integer primary key autoincrement, " - + "news_id interger, title varchar(10), " + ")"; - - public DatabaseHelper(Context context) { - super(context, COOLNOTE_DATABASE_NAME, null, 1); - } - - @Override - public void onCreate(SQLiteDatabase db) { - db.execSQL(CREATE_NOTE_TABLE); - // db.execSQL(CREATE_NEWS_LIST_TABLE); - } - - @Override - public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {} - -} \ No newline at end of file diff --git a/src/MyApplication/app/src/main/java/com/example/administrator/myapplication/db/NoteDatabase.java b/src/MyApplication/app/src/main/java/com/example/administrator/myapplication/db/NoteDatabase.java deleted file mode 100644 index 5df308e..0000000 --- a/src/MyApplication/app/src/main/java/com/example/administrator/myapplication/db/NoteDatabase.java +++ /dev/null @@ -1,180 +0,0 @@ -package com.example.administrator.myapplication.db; - -import android.content.Context; -import android.database.Cursor; -import android.database.sqlite.SQLiteDatabase; - - -import com.example.administrator.myapplication.entity.NotebookData; -import com.example.administrator.myapplication.utils.AccountUtils; -import com.example.administrator.myapplication.utils.StringUtils; - -import java.util.ArrayList; -import java.util.List; - -public class NoteDatabase { - private final DatabaseHelper dbHelper; - - public NoteDatabase(Context context) { - super(); - dbHelper = new DatabaseHelper(context); - } - - /** - * 增 - * - * @param data - */ - public void insert(NotebookData data) { - String sql = "insert into " + DatabaseHelper.NOTE_TABLE_NAME; - - sql += "(_id, objectid, iid, time, date, content, color) values(?, ?, ?, ?, ?, ?, ?)"; - - SQLiteDatabase sqlite = dbHelper.getWritableDatabase(); - sqlite.execSQL(sql, new String[] { data.getId() + "", - data.getIid() + "", data.getObjectId(), data.getUnixTime() + "", data.getDate(), - data.getContent(), data.getColor() + "" }); - sqlite.close(); - } - - /** - * 删 - * - * @param id - */ - public void delete(int id) { - SQLiteDatabase sqlite = dbHelper.getWritableDatabase(); - String sql = ("delete from " + DatabaseHelper.NOTE_TABLE_NAME + " where _id=?"); - sqlite.execSQL(sql, new Integer[] { id }); - sqlite.close(); - } - - /** - * 改 - * - * @param data - */ - public void update(NotebookData data) { - SQLiteDatabase sqlite = dbHelper.getWritableDatabase(); - String sql = ("update " + DatabaseHelper.NOTE_TABLE_NAME + " set iid=?, objectid=?, time=?, date=?, content=?, color=? where _id=?"); - sqlite.execSQL(sql, - new String[] { data.getIid() + "", data.getObjectId() + "", data.getUnixTime() + "", - data.getDate(), data.getContent(), - data.getColor() + "", data.getId() + "" }); - sqlite.close(); - } - - public List query() { - return query(" "); - } - - /** - * 查 - * - * @param where - * @return - */ - public List query(String where) { - SQLiteDatabase sqlite = dbHelper.getReadableDatabase(); - ArrayList data = null; - data = new ArrayList(); - Cursor cursor = sqlite.rawQuery("select * from " - + DatabaseHelper.NOTE_TABLE_NAME + where, null); - for (cursor.moveToFirst(); !cursor.isAfterLast(); cursor.moveToNext()) { - NotebookData notebookData = new NotebookData(); - notebookData.setId(cursor.getInt(0)); - notebookData.setObjectId(cursor.getString(1)); - notebookData.setIid(cursor.getInt(2)); - notebookData.setUnixTime(cursor.getString(3)); - notebookData.setDate(cursor.getString(4)); - notebookData.setContent(cursor.getString(5)); - notebookData.setColor(cursor.getInt(6)); - data.add(notebookData); - } - if (!cursor.isClosed()) { - cursor.close(); - } - sqlite.close(); - - return data; - } - - /** - * 重置 - * - * @param datas - */ - public void reset(List datas) { - if (datas != null) { - SQLiteDatabase sqlite = dbHelper.getWritableDatabase(); - // 删除全部 - sqlite.execSQL("delete from " + DatabaseHelper.NOTE_TABLE_NAME); - // 重新添加 - for (NotebookData data : datas) { - insert(data); - } - sqlite.close(); - } - } - - /** - * 保存一条数据到本地(若已存在则直接覆盖) - * - * @param data - */ - public void save(NotebookData data) { - List datas = query(" where _id=" + data.getId()); - if (datas != null && !datas.isEmpty()) { - update(data); - } else { - insert(data); - } - } - - // - // /** - // * 合并一条数据到本地(通过更新时间判断仅保留最新) - // * - // * @param data - // * @return 数据是否被合并了 - // */ - // public boolean merge(NotebookData data) { - // Cursor cursor = sqlite.rawQuery( - // "select * from " + DatabaseHelper.NOTE_TABLE_NAME - // + " where _id=" + data.getId(), null); - // NotebookData localData = new NotebookData(); - // // 本循环其实只执行一次 - // for (cursor.moveToFirst(); !cursor.isAfterLast(); cursor.moveToNext()) { - // localData.setId(cursor.getInt(0)); - // localData.setIid(cursor.getInt(1)); - // localData.setUnixTime(cursor.getString(2)); - // localData.setDate(cursor.getString(3)); - // localData.setContent(cursor.getString(4)); - // localData.setColor(cursor.getInt(5)); - // } - // // 是否需要合这条数据 - // boolean isMerge = localData.getUnixTime() < data.getUnixTime(); - // if (isMerge) { - // save(data); - // } - // return isMerge; - // } - - public void destroy() { - dbHelper.close(); - } - - public void insertIntroduce(Context context) - { - NotebookData editData=new NotebookData(); - if (editData.getId() == 0) { - editData.setId(-1 - * StringUtils.toInt( - StringUtils.getDataTime("dddHHmmss"), 0)); - } - editData.setUnixTime(StringUtils.getDataTime("yyyy-MM-dd HH:mm:ss")); - editData.setContent("欢迎使用嗖藏，赶快记下你此刻的灵感吧！"); - editData.setUserId(AccountUtils.getUserId(context)); - save(editData); - } -} \ No newline at end of file